It looks like the race to become President of the United states has already gotten way out of hand, http://jebbush.com now directs to https://www.donaldjtrump.com/, as the Republican candidates duke it out online. How did that happen? The domain jebbush.com was created in November 1997, but updated the 20th of October this year.
How it happened was simple: Jeb Bush never registered the domain name, someone else did back in 1997. The official website for Jeb Bush is Jeb2016.com. Whether Donald Trump bought the domain name from the unknown owner now, or if the owner decided to do the redirect just for the heck of it is anyones guess.